I have a dry cough, a stuffy nose & sneezing, I have suffered from bronchitis since a baby I'm 24 f, it started with a sore throat, no fever what is it?

Post nasal drip. you likely have undiagnosed allergies. The allergies cause the sore throat and the sneezing and coughing. The drainage is likely clear. I would try some Flonase a couple of sprays each nostril once or twice a day. Good luck and feel better!